Deep-well air-pump.



W. L. MORROW.

DEEP WELL AIR PUMP,

APPLICATION FILED APR. 1, 1912.

1,080,88, Patented Dec. 9, 1913.

WILZIAM L. MORBOW, F LOS ANGELES, CALIFORNIA.

iii

DEEP-WELL AIR-FUND.

- Specification of Letters Patent.

Patented Dec. 9, 1913.

Application filed April 1, 191,2. Serial No. 687,595

Pumps, of which the following is a do-- scription.

0 This invention. relates to improvements in pumps and particularly to pum is adapted to force water from deep wells by air pressure.

It is an object of the invention to provide a pump which is provided with a pair of pistons operating to continuously pum air, the inlet of air to the cylinders of .5, pistons being controlled without valves.

It is also an object of the invention to provide a continuous air compressor adapted to force air into a well, an automatic valve being provided whereby the air will be retained at intervals within a holder, until-water in the well can rise to its usual level.

It is an object of the invention to provide a pump 1n which pistons are operable for forcing air into the bore of a well to any desired depth for raising water therefrom, said pistons producing a vacuum in the pump on their return strokes, for quickly drawing in air again for compression and use in pumping the water.

In the accompanying drawing forming a part of this specification, Figure 1 is a vertical central sectional View through the improved pumping apparatus, portions of the mechanism being shown in elevation. 'Fig. 2 1s an enlarged transverse sectional View taken upon the line 2-2 of Fig. 1. Fig. 3 is a detail vertical sectional view of the valve mechanism in the bore of the well taken upon the line 33 of Fig. 2.

The details and features of the invention Wlll now be more particularly described, reference being had to the said drawing in which- 5 indicates a pump casing provided with cylinders 6 and 7, in which are fitted pistons 8 and 9. The pistons are connected b.

means of pitmen 10 with cranks 11 whic are carried by aicrank shaft 12. A band wheel 13 is secured to said shaft and ada ted to be connected by a belt or band with cylinders are inlet ports 14. The ports are so located that they Will only be uncovered when the pistons are at the upper extremity of their strokes as shown in connection with the pistons 8 in Fig. 1. The pump is thus a vacuum pump and acont ruous compressor, one piston creating a vacuum to drawin air while the other is compressing air.

' The base'of the pump is provided with, a

chamber 15, which acts as a storage tank and is preferably made large enough to accommodate a considerable quantity of air compressed by the pistons. The cylinders are connected with said chamber 15 by ports 16 and 17 in which are seated valves 18 and 19. The said valves 18 and 19 are provided with valve stems as 20 which en gage guide passages 21, formed in removable bearing pieces 22, which are adapted to screw into apertures 23 formed in the outer walls of the chamber 15. Springs 24; are interposed between said valves'and the heads of said bearing pieces 22, to normally keep the valves against their seats and extending downwardly from the chamber 15 is a pipe 25, whicl1 is fitted in an opening in the base of the chamber 15 at its upper end and at its lower end extends into the casin- 26 of a well. The pipe 25 is provided wit a valve 27, preferably of an automatic type, just below the pump by which a flow of materials therethrough may be controlled. The valve shown is a spring pressed valve,

the spring being made strong enough to hold the valve seated against a given amount of pressure. The upper end of the well casing 26 is preferably carried a short distance above the surface of the ground and one or more discharge troughs 28 are arranged so as to receive and direct the flow of water from the well to any desired point.

The lower end of the pipe 25 is prefer ably provided with a valve mechanism, made up of a collar 29 secured to the lower end of said rated projections through which bolts 30 pass, the lower ends of said bolts being connected with a. head 31 fitted into the casing of the valve and having a c'entralopening 32 through which water passes in being drawn from the well. The bolts 30 s ace the cross head 31 a suitabledistance' om the collar 29 to accommodate a ball valve 33, the said bolts also being arranged close pipe and formed with perfov enough together to prevent the ball valve from escaping from its position between said collar and head. The collar is provided with a concave inner surface 34, in which the ball is adapted to seat when the column of water in the casing 26 seeks to rise in the pipe 25. The head 31 is also provided with a concave valve seat 35 upon which the valve 33 rests and seats when the column of air from the pipe 25 is forcing the Water above the valve to the surface. The head 31 and valve 33, when the valve is seated, form a tank of the upper end of the casing When water is being forced out of the well.

Inthe operation of the device the pistons 8 and 9 continually force the air which enters through the ports 14:, past the valves 18 and 19 into the air chamber 15 and thence downwardly through the pipe 25, the valve33 being seated by the pressure so that the air will raise the column of water standing above the said valve in the bore of the well. The return stroke of each piston after forcing the air in the cylinder past the valve at the end thereof, produces a suction in said cylinder, since the air in the chamber 15 cannot return to the cylinder because of the seating of either of the valves 16 and 17. A partial vacuum is thus produced in the cylinder so that when the port 14 is uncovered the air will quickly rush in and completely fill the space below the piston. The downward movement of each piston will entrap air within its cylinder and force it past the valves into the chamber 15. The said chamber is made of ample capacity to have a considerable amount of compressed air stored therein by the continuous action of the pump. An automatic valve 27 is made with a sufficiently strong spring to hold the air in the chamber 15 until a given amount of pressure has been attained. Upon such pressure being attained the air will force its Way past have hereunto subscribed the valve 27 and into the pipe 25 causing the valve 33 to seat and permitting the air to lift the column of water standing above the head 31. As soon as the air pressure escapes from the pipe 25 at its lower end by the carrying out of the water, the pressure in the tank 15 will be reduced-to such an extent, that the spring of the, valve 27 will again seat and will remain seated a sufficiently long time to permit the water to rise again past the valve 33 to the usual water level in the casing 26. The pressure is thus alternately and continuously operative and will supply all the air needed to blow past the valve 27 and raise the water that accumulates in the casing 26.

What I claim is:

In a mechanism for lifting water from deep wells, in combination with the casing of a well and a continual source of air under pressure, of a reservoir for receiving said air, an automatic valve in said reservoir controlling the passage of air into the well, a pipe connected to said valve to deliver the air from said reservoir, into the well, a valve cage mounted on the lower end of said pipe, valve seats to said cage, one valve seat on the end of said pipe, the other of said seats provided with an opening, its peripheral walls engaging said casing of the well, and locating the air pipe therein, and a ball valve mounted in said cage to close the pipe to prevent fluid from entering the same and to alternately close the well to prevent the air pressure acting on the water below the valve seat engaging the walls of the casing.

In witness that I claim the foregoing I my name this 21st day of March, 1912.

WM. L. Moaaow.

Witnesses:

EDM ND A. STRAUsE,

EARLE R. PoLLARD. 

